Update readme

1 files changed, 11 insertions, 1 deletions

diff --git a/README.md b/README.md
index 6a821b8..50ed15e 100644
--- a/README.md
+++ b/README.md
@@ -32,14 +32,24 @@ or can be interpreted with the [ABCMachine][abc-github] project.
                   |  '(' <Expression> ')'
 
 <Op1>            ::= '~' | '!'
-
 <Op2>            ::= '+' | '-' | '*' | '/' | '%' | '==' | '||' | '&&'
 
 <Type>           ::= 'Bool' | 'Int' | 'Void'
 
 <Literal>        ::= <Bool> | <Int>
+<Bool>           ::= 'True' | 'False'
+<Int>            ::= <Digit>-list
 ```
 
+## Dependencies
+
+You need a working Clean installation to build the compiler and at least `clm`
+and the code generator to use it.
+
+## Vim highlighting
+
+In the `vim` directory.
+
 ## Author &amp; License
 
 Copyright &copy; 2017 [Camil Staps][cs].